Core for paper-rolls.



T. ELIXMA N, J. T. CUNNINGHAM 81; G. F. SHEVLIN.

N0 MODEL.

PATENTED MAY 3, 1904.

GORE FOR PAPER ROLLS.

APPLICATION TILED JAN. 14, 1904.

UNITED STATES I Patented May 3, 1904.

PATENT OFFICE.

THEODORE ELIXMAN AND JOHN T. CUNNINGHAM, OE CORINTH, AND GEORGE E. SHEVLIN, OF SARATOGA SPRING-S, NEW YORK.

CORE FOR PAPER-ROLLS.

SPECIFICATION forming part of Letters Patent No. 759,085, dated'May 3, 1904. Application filed January 14, 1904. $erial No. 188,967. (No model.)

To (ti/Z whom it Ina/y concern.-

Be it known that we, THEODORE ELIXMAN and JOHN T. CUNNINGHAM, both of Corinth, in the county of Warren, and GEORGE F. SIIEVLIN, of Saratoga Springs, in the county of Saratoga, State of New York, all citizens of the United States, have invented an Improvement in Cores for Paper-Rolls, of which the following is a specification.

Rolls of paper from the mills for use in the arts, and especially for newspapers and periodicals, are shipped on tubular cores, preferably of paper, the ends of the cores being notched. These notches are engaged by projections or lugs to drive the core to Wind the paper thereon, and when the rolls are mounted for use on the printing-press the notch is engaged again in holding the roll while unwinding. In preparing and in unwinding the roll of paper" a shaft passes through the tubular core, and there are stepped bushings on each end of the shaft that passes into the core, each bushing being provided with a spline that enters the adjacent notch of the core, the bushings in turn being made fast to the. shaft by set-screws. The notched ends of the cores wear away very fast by the action of the metal splines against the paper, and it is a sourceof considerable expense to renew the cores; and the object of our invention is to overcome these difiieulties as well as to produce a superior core.

In carrying out our invention we provide a clip of suitable material or metal curved to conform to the cross-section of the core, notched to receive the spline of the bushing, and of such form and construction as to be received by and to engage the end of the core, the core also by preference being shaped to receive the clip, so that when secured in place upon the core said clip is advantageously, not appreciably, thicker than the paper core. We prefer to recess the inner and outer surfaces of the core to a depth corresponding with the thickness of the metal of the clip, as well as to notch the same to receive the Wall around the notch of the clip, and the clip is preferably provided with spurs, which enter the core when the clip is applied to the core. The clip is preferably made of malleable cast 5 metal.

In the drawings, Figure 1 is a broken longitudinal section and partial elevation repre senting our improvement. Fig. 2 is a crosssection at a m of Fig. 1. Fig. 3 is a cross section at ;1 2/ of Fig. 1. Fig. i is a plan at one end of the core. Fig. 5 is a view of the end of the core, as shown in Fig. 4. Fig. 6 is a plan of one of the bushings. Fig. 7 is a plan of a part of the shaft and part of the to bushing and one end of the core fitted with the metal clip. Fig. 8 is a perspective view of the inner. portion of the metal clip, and Fig. 9 is a vertical section and partial elevation of the metal clip on the line a" :11 of Fig. 8. The section Fig. l is taken on the line e of Fig. 7.

(t represents a shaft, which may be the shaft of the machine on which the paper is rolled or the shaft of a printing-mess from which the paper is unrolled. I I V I I) c are bushings, alike but reversed. They are stepped that isto say, one portion is of.- smaller diameter than the other, the difference in the diameters substantially agreeing with the thickness of the core of paper when the endsof the bushings are passed into thec'orc. These bushings b c are provided withsplines 6 0, which are preferably integral partsof the bushing, and they are also provided with tapo bolts2 3, which pass through the bushings and are adapted when tightened against the shaft (0 to hold the bushings firmly in place as they .may be set.

d represents the core of paper, provided at one or both ends with inner and outer surface recesses 4. and 5 and end notches cl". I

The metal clip which forms the essential part of our invention and which is adapted to be received in the end of the core of paper (Z 9 is composed of a body portion and under plate 6, with a notched portion c, with an upper plate (3 and with inner spurs 6, extending upward from the under plate of the body portion and downward from the upper plate 6 The plate of the body and the upper plate are advantageously of substantially the same thickness, while the metal that surrounds the notch and that extends along the end faces of the clip is quite a little thicker than the metal of the plates. Figs. 8 and 9 show the initial position of the metal clip, in which the upper plate 6 is joined to the body along the portion which alines with the end of the core, and it is separate from the body portion surrounding the notch, the said plate 6 and the under plate of the body forming an acute angle to one an other. This form is given to the metal clip in order to readily connect the same to theend of the core prepared with inner and outer recesses and end notch to receive the same. The metal clip is preferably secured to the roll by hydraulic or other suitable pressure the force of which brings the under plate of the body and the upper plate 6 parallel with each other and in so doing forces the spurs 6 into the material of the core, thus holding the clip and the core firmly together. It will be noticed that the surfaces of the respective plates are of appreciable area and that a liberal bearing is provided therefor at the end of the core in the recesses provided to receive the same, the frictional contact being quite appreciable, the spurs mainly serving to prevent accidental separation. The notch e of the clip is adapted to receive the spline b or c of the core.

We prefer to employ clips, as described, at the ends of the core d and to form splines b c on the respective bushings, so that equal force is employed at the respective ends of the core, either in winding up the paper thereon or in holding back while the paper is unwound on the printing-press. In practice the small amount of bearing as between the respective splines and the notches of the clips is distributed over the entire contacting surfaces of the clips and the ends of the cores, so that the force applied is not local for the destruction or breaking away of the ends of the cores, but is so distributed that it is readily taken up without injury either to the metal clip or to the core.

We prefer when the cores of paper cl are originally made to form or cut out the recesses 4 5 at the ends in the inner and outer surfaces and the notches d and to secure the clips, which are of curved form, (see Figs. 2 and 3,) which correspond with the curvature of the core, permanently to the core at the respective ends thereof.

We claim as our invention 1. The combination with the core of a roll of paper having at least one end notch, of a clip adapted to fit the notch and to pass over both outer and inner surfaces of the core at the end, and means for connecting the same securely to the core.

2. The combination with the core of a roll of paper having at least one end notch, of a metal clip adapted to fit the notch and to pass over both outer and inner surfaces of the core at the end and conforming to the curved contour of the core, and means for connecting the same securely to the core.

3. The combination with the core of a roll of paper having end notches, of curved metal clips adapted to fit the notches and to pass over both outer and inner surfaces of the core at the end and to conform to the curved contour of the core, and having notches and means for connecting the same securely to the core.

4. The combination with the core of a roll of paper having end notches, of curved metal clips adapted to fit the notches and to conform to the curved contour of the core and having notches and plates adapted to overlie the opposite inner and outer surfaces of the core, and means for connecting the same securely to the core.

5. The combination with the core of a roll of paper having at least one end notch and adjacent inner and outer surface recesses surrounding the notch, of a clip of metal having a body portion to fit the notch and come at the end of the core, an under plate and an upper plate adapted to fit the inner and outer surface recesses of the core, and means for connecting said clip securely to the core.

6. The combination with the core of a roll of paper having at least one end notch and adjacent inner and outer surface recesses surrounding the notch, of a clip of metal having a body portion to fit the notch and come at the end of the core, an under plate and an upper plate adapted to fit the inner and outer surface recesses of the core, and spurs extending upward from the under plate and downward from the upper plate and adapted to penetrate the material of the core for securing the clip to the core.

7. As a new article of manufacture, a curved metal clip adapted to be placed upon the end of the core of a roll of paper and initially comprising a notched body portion with ends that are in line, a curved under plate and a curved upper plate at an acute angle to the under plate and separated from the notched body portion, said plates being provided with means for engaging the core under the application of pressure to the clip.

8. As a new article of manufacture, a curved metal clip adapted to be placed upon the end of the core of a roll of paper and initially comprising a notched body portion with ends that are in line, a curved under plate and a curved upper plate at an acute angle to the under plate and separated from the notched body portion, said plates being provided with upwardly and downwardly extending spurs which penetrate the material of the core when pressure is applied to secure the clip to the core.

9. The combination with the core of a roll of paper, of a clip adapted to pass over both outer and inner surfaces of the core and c0- acting means at at least one end of the core and the clip by which said parts lit and are connected and the clip securely held to the core.

10. The combination with the core of a roll of paper, of a clip of metal agreeing in thickness with the thickness of the core, and coacting means formed With the core of paper at one end and with the clip and by which the clip is connected securely to the core.

Signed by us this 2d day of January, 1904. 

